Flux generator as the gas flux flame brazing technology of the main equipment, is a kind of gas flux can be (flux) in the form of steam into the gas (acetylene, liquefied petroleum gas, propane, etc.) of equipment, to replace the past in the flame brazing process to manually add borax trouble, make the soldering process is greatly simplified.Uniform flux due to the process of adding form is continuing to add, in the brazing torch burning flame brazing flux fully covered areas, not only increase the wettability of solder, liquidity, and can reduce the generation of porosity, improve the weld strength, can also prevent the oxidation of the brazing area surface black, can need not pickling after brazing.So as to improve production efficiency and reduce production cost.